新聞財經娛樂♬資訊 News Economy

In the past , I used cpanel to create email account , now I gave up to use Cpanel
so that now I need it to set up email by myself. As we know we can create email account when add user account on linux and email address before @ sign that is as same user account name, and that can be shown at /var/spool/mail, and that I can see all email account I created.

Question-1
Now I just create new account by root access and adduser and then see the email account in /etc/spool/mail directory Why I ran the command:  sendmail  -bv mylogin@mysite.com that showed me " failed to verfiy: No such user"? Do I need to other steps to let my new email account up ?

Question-2
I have old email account that I can verfiy its existence by sendemail, but I can not
receive any new  email from the old email account when other remote email yahoo account send email to the old email account. And yahoo email box doesn't have
get any mail sending failure return email when send email to the old account.
How I can check what is wrong with the old email account ?


Question-3, Now I use free SquirrelMail, whether I also need   free package from
MailMan. What is different between them mainly? Or you have better suggestion
for free web email tool for email box , creating email account, monitor all email account
on Linux ?

Please advise

Duncan

If you have cPanel installed then it likely converted your system to using aliased accounts instead of Unix accounts.  Usually you can find the accounts in /home/<domain user's name>/mail/<domain name/  In that circumstance, you either have to continue to use cPanel to add them, or you can use their API scripter, which is a real pain.  

SquirrelMail is just a Webmail front end for users to read mail, while MailMan is for managing mailing lists to large groups of users.  They are totally different things, and you don't need MailMan.

cPanel works decently well for managing mail if you're not a Unix system administrator by trade.  You might try Webmin which is a lighter version of cPanel.  The problem remains though, it's going to take quite a conversion to go back from cPanel to standard Unix accounts... you may have to add them all manually first, and then switch to standard sendmail.